For decades Leica made expensive but advanced cameras suitable for use by pros in the field. By now, however, people who want small, light, and fine-grained control in a package similar to the early Leicas look at the Fuji X100S or X100T (http://www.dpreview.com/reviews/fujifilm-x100s/) or to a lesser extent something like a Sony RX1: http://www.dpreview.com/reviews/sony-cybershot-dsc-rx1.
Even a Micro Four-Thirds camera like an Olympus EM5 (http://www.dpreview.com/reviews/olympusem5) is in some ways more a successor to the great Leica film cameras than the current Leica digital cameras. As DPR says: "The E-M5 is simply an awful lot of camera in a compact and attractive body. It's a nice camera to use and the images it takes are just as enjoyable. Without any reservations whatsoever, it deserves our Gold Award."
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Edit: pesto88 links to his Flickr account in a daughter comment; here is some of my SFW work: https://www.flickr.com/photos/91262622@N02. I'm an amateur and it shows, but I like to think I'm learning. I also mostly shoot with an EM5 and primes, but the surfeit of great cameras at low prices makes a lot of discussion around the choices into pointless dissections and narcissisms of small differences (http://en.wikipedia.org/wiki/Narcissism_of_small_differences).